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#1
11-03-2023, 12:58 AM
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Is this evidence of a slipped balancer?
The rubber in this balancer has come out in one area- it was like this when I acquired the car. Is this indicative of a balancer that has slipped?
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project Last edited by grivera; 11-03-2023 at 01:07 AM. |
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#2
11-03-2023, 01:07 AM
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If it hasn’t slipped it’s going to soon.
Nice you caught it before it separated.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#3
11-03-2023, 01:08 AM
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Thanks for the quick response!
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project |
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#4
11-03-2023, 06:06 AM
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If your not pressed for time then send it out to damper dudes andthey can rebuild it better then new.
Yes, good thing you found it before it went fully south and took your radiator with it and maybe the trans cooling lines also.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#5
11-03-2023, 06:34 AM
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I could be wrong but i think the crank pulley will catch the ring if it for some unknown reason would come loose from the hub and hit anything beyond the engine.
FWIW |
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#6
11-03-2023, 08:56 AM
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Are the outer rings of the factory balancers iron or steel?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#7
11-03-2023, 11:50 AM
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They’re all iron construction.
Toss that one in the recycling bin. The last time I called someone about rebuilding a regular Pontiac balancer which happened to be one of the earlier style for a 421 the guy sold me a new one. Rebuild the rare unobtainable ones, buy new for the common ones.
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#8
11-03-2023, 12:03 PM
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I would replace it, .... but with that said i bet it was like that from day one, ..... the inner and outer hub do not grow in place they are pressed onto each other with rubber in between pieces and that looks just like a section that got pushed out of place during assy because the ring is still where it should be longitudinally.
it has a seal saver on it also which means its done its job long enough already considering the price of a new one
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A man who falls for everything stands for nothing. |
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#9
11-03-2023, 01:17 PM
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Thanks all - I have an extra new one I bought from GM parts direct nearly 20 years ago
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears '69 LeMans Vert, 350, #47 heads: Non-running project |
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#10
11-03-2023, 05:17 PM
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I would replace it also but looking at your picture it looks like it was painted already sticking out? I have 4-5 balancers here not one had the rubber installed perfect. Not one of them run perfectly true and I can’t remember the last I saw one that did. Let us know if your new one spins true I would be interested to know.
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#11
11-04-2023, 02:42 AM
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I can't be the only one around to come back into the pit area after running and shutting off the engine and hearing the outer ring continue to spin for a few seconds. Sort of a little alarm to let you know your racing is done for the day. Anyway, the pulleys do keep the ring from departing.
I did have an early 8-bolt balancer rip through the bolt holes and depart the engine compartment. It luckily went down and out and ended up in the sagebrush somewhere. There were no reports from the stands that it killed anyone so all was good on that day.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon in progress. |
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#12
11-04-2023, 08:42 AM
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I had a Chevy small 283 balamcer explode coming when off the corner.in a race. I didn't realize it at the time but I did see sparks from under the hood. I caught it the next wek when I tried to time the engine.
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1979 Trans Am WS-6 .030 455 zero decked flat pistons 96 heads with SS valves 041 cam with Rhoads lifters 1.65 rockers RPM rods 800 Cliffs Q Jet on Holley Street Dominator ST-10 4 speed (3.42 first) w 2.73 rear gear __________________________________________________ _______________________________ 469th TFS Korat Thailand 1968-69 F-4E Muzzle 2 |
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